ML20212C366

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Annual Rept Environ Radiation Survey,Point Beach-Kewaunee Sites Jul 1968 - June 1969
ML20212C366
Person / Time
Site: Kewaunee, Point Beach, 05000000
Issue date: 06/30/1969
From:
WISCONSIN, STATE OF
To:
Shared Package
ML20212C276 List:
References
FOIA-87-59 NUDOCS 8703030770
Download: ML20212C366 (24)
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(o ANNUAL REPORT

  • E!NIRONMENTAL RALIATION SURVEY POINT BEACll-KEWAUNEE SITES JULY 1968-JUNE 1969

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TABLE OF C0ffraffG '

11. Introduction
2. Sample Collection '

3.. Analytical-Procedures

14. - Standards 5 Sensitivities and Accuracy 6 .~ Data

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7. ' Conclusions 8.~ References Tables -

I-A Gross Beta Activity in Surface Air e

I-B Cesium 137 Activity in Surface Air II Gross Beta Activity in Precipitation III-A Lake Water, Gross Alpha and Gross Beta Activity III-B Lake Water, Average Gross Alpha, Gross Beta and Strontium 90 Activity III-C Lake Water, Gamma Scans IV Well Water Radioactivity V- Soil Radioactivity VI Vegetation Samples VII Milk Samples ,

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POINT BEACH-KEWAUNEE NUCLEAR GUTERATING PLANTS ENVIRONMENTAL MONITORING PROGRAM 1968-1969 ANNUAL REPORT

1. Introduction This is the first annual report of the Environmental Monitoring Program for the Point Beach and Kewaunee nuclear generating plants. These two nuclear generating plants are covered by a single monitoring program since they are located only approximately three miles apart. This report is for the fiscal year July 1, 1968 through June 30, 1969 The data obtained from this pre-operational monitoring program will pro-vide a base line for the evaluation of the data from a similar environ-mental survey which will be conducted after tha nuclear generating plants have been placed in operation.

Samples of surface air, precipitation, lake s ter, well water, al Sae, soil, vegetation and milk were collected from selected locations at planned sampling intervals. A description of the sampling sites and sampling inter-vals is given in Appendix A.

2. Sample Collection The following numbers of each type of sample were collected and analyzed for the report period.

Type of Sample Number of Samples Air Particulate 168 Precipitation 71 Lake Water 17 Well Water 14 Soil 28 Vegetation 27 Milk 12 Algae 2 Sampling Techniques Air Samples Continuous air samples are collected weekly at five locations. The air particulate samples are collected on four inch plastic filters.

The sampling rate is one cubic foot of air per minute.

Precipitation Samples Individual samples of precipitation are collected for each rainfall over 0.10 inch. The samples are collected at the same stations as the air samples. A five gallon polyethylene carboy with a 0.40 square meter collection funnel is used to obtain precipitation samples.

s y Lahh Michigan Water Sampits Lake water camples are collected cemiannually at five locations. - A grab sampling technique is used to collect the samples from the chore-line.

Well Water Samples Well water samples are collected seniannually from five wells. Two of the wells are located on the Point Beach and Kewaunee reactor sites.

Three, of the wells are off-site private water supplies.

Soil Soil senples are collected seniannually at eleven sites. A random plug of the top three inches of soil is collected at each sampling station.

Vegetation Samples of grass are collected semiannually from the eleven soil' sampling sites.

Milk-A one gallon sample of pooled raw mitk is collected monthly from the Kornely Dairy in Mishicot. This milk is from local farms.

3 Analytical Procedures The procedures given are abstracted to present only the basic steps.

Air Particulate Samples - Beta Gama Place the 4 inch plastic filter on a 4 inch stainless steel planchet.

Beta count in a Sharp Widebeta external gas flow proportional counter.

Calculate activity correcting for counter efficiency.

Air Particulate Samples - Gamma Place all 4 inch plastic filters for a month on the 4" x 4" NaI crystal detector. Detemine the gamma spectrum using 256 channels of an ND130A 512 channel gamma spectrometer set at 0.01 MeV per channel. Calculate activity correcting for counter efficiency.

Rain Water - Beta Gamma Evaporate a 500 mi aliquot on a weighed 2 inch stainless steel planchet. Beta count in a Sharp Widebeta external gas flow propor-tional counter. Calculate activity correcting for counter efficiency.

Lake Water - Alpha, Beta Camma 4

Filter 500 ml aliquot of sampic. Evaporate filtrate in a 2 inch stainlesc steel planchet. Beta and alpha count in Sharp Widebeta external gas flow proportional counter. Place filter paper in 2 inch stainicas steel planchet and dry at 10300. Beta and alpha count in Sharp Widebeta external gas flow proportional counter.

Calculate activity correcting for counter efficiency.

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Lak ? W-ter - Cesium 137 Place 3 5 liter. sample in Marinelli beaker on 4" x 4" naI crystal detector. Count for 100 minutes on ND130A ga=ma spectraneter using 256 channels set at 0.01 MeV per channel. Calculate activity correet-ing for counter efficiency.

Well Water - Aloha, Beta Gamma Evaporate aliquot on weighed stainless steel planchet. Deta and alpha count in a Sharp Widebeta external gas flow proportional counter.

Calculate activity correcting for self-absorption and counter efficiency.

Soil - Beta Gamma, p pha Dry sample, grind, sieve and weigh O.1 gram into a 2 inch stainless steel planchet. Beta gamma and alpha count in a Sharp Widebeta external gas flow proportional counter. Calculate alpha and beta activities correcting for self-absorption and counter efficiency.

Vegetation - Beta Gamma Dry sample at 1100 0, grind, weigh into stainless steel planchet. Beta count in a Sharp Widebeta external gas flow prcportional counter.

Calculate activit,v correcting for self-absorption and counter efficiency.

Milk - Cesium 137 - Iodine 131 Procedure same as for Lake Water - Cesium 137 Milk - Strontium 20 Strontium and yttrium carriers are added to milk which has been a6ed two to four weeks. A one liter sample is passed successively through cation and anion exchange columns. The yttrius is eluted from the anion resin with hydrochloric acid and precipitated as yttrium oxalate, filtered and weighed to detentine yield and beta counted in a Sharp Widebeta counter correcting for counter efficiency aid decay.

4. Standards The standards used in calibrating the counting equipment are:

Analysis Standards Gross Alpha Polonium 210 Gross Beta Gamma Cesium 137 Strontium 90 Strontium 90 Gamma Spectroscopy Sodium 22, Cesium 137 The average partial chemical analysis of Lake Michigan water is taken to be as follows:

. Hardness = 128 ppm Calcium = 37 ppm Magnesium = 8.5 ppm Chlorides = 8 ppm Sulphates = 19 ppm

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  • 1 5 .' Sensitivities and Accuracy .

' Type Sensitivity Aliquot ~

of Eample Analysis Detection Limit Analyzed 1, Error (c' Air Particulate Beta-Gama ~ 1.7 x 10-3 pCi/M3 330 M3 + tog-Cs-137 2.0 x 10-3 pCi/M3 330 M3 3 log Rain Water ~ Beta-Gamma 0.6pCi/ liter 500 ml + 10%

Lake Water Beta-Gamma (susp) 0.6pCi/ liter 500 ml. + 10%

Alpha-(susp) 0.03pCi/ liter 500 ml I 10%

Beta-Gamma (diss) 0.6pCi/ liter 500 ml 7 10%

Alpha (diss) 0.03pCi/ liter 500 ml 7 10%

Cs-137(gammascan) 3.2pCi/ liter 3500 mi i10%

Well Water Beta-Gam a 0.6pCi/ liter 500 ml + 10%

Alpha 0.03pCi/ liter 500 mi i10%

Soil Beta-Gamma 1.5pCi/gm 0.2 gm +10%

Vegetation Beta-Gamma 15pCi/gm 0.2 gm + 10%

Mili I-131 32pCi/ liter 3500 ml + 10%

Cs-137 32pCi/ liter 3500 ml I 10%

Sr-90 0 3 pCi/ liter 1000 ml 110%

(e) Error is that' for overall procedure at ten times the detection limit.

6. Data The data presented in this report was accumulated during the period July 1968 through June 1969 Most of the data for the various types of samples is presented in tabular form. In addition to the tables, a graphical presentation is made of typical. gamma scans of air, lake water, milk samples and spectrometer background.

7 Conclusions This report covers the pre-operational environmental radioactivity monitor-ing program carried on for the period of July 1,1968 through June 30, 1%9 Samples of air, precipitation, lake water, ground water, soil, vegetation, algae and milk were collected from selected locations about the reactor site and analyzed for radioactivity.

The tap unter and well water gross alpha and gross beta activities are comparable to similar samples throughout the country. The measured activities are well below those specified by the United States Public Health Service Drinking Water Standards.

The Lake Michigan water sampics. uniformly show activitics well below the MPCU for uncontrolled areas specified in National Bureau of Standards Handbook 69

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w ' Th2 racultsLobtained frsm analysis of the' samples of soil and veC1tation .-

' appear uniformly consistent with no unusual activitics noted'in any-of the samples.

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- The' activities found by analysis of the milk samples are consistent.with'

'- the results from other. sampling stations of the Wisconsin Division of-

-Health milk surveillance system. The . activities of iodine 131,- cesium .137 and: strontium 90 in all' samples were well.below the levels set for routine r

-surveillance.

8. References 9
1. Drinking Water Standards, Revised -1962, Public Health Service Publication No. 956,- Superintendent of Docwnents, Government Printing Office, Washington, D.C.
2. National' Bureau -of Standards Handbook 69, August 1965. - -

3 '. Radiation Protection Standards, Federal Radiation Council,.

Report No. 2 - September 1961.

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TABLE I-A GROSS BETA ACTIVITY IN SURFACE AIR (Concentrations in pCi/M3 )

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Number Location Month of Samples Minimum Maximum Averare Meteorological Tower August 1968 3 0.073 o.110 0.o86 Point Beach September 1968 2 0.013 0.029 .o.021 october 1%8 5 0.008 0.050 0.022 November 1968 4 0.005 0.018 0.01o December 1968 4 0.005 0.130 0.039 January 1969 5 0.005 0.086 0.032 February 1969 4 o.008 0.034 0.0 17 March 1969 4 0.026 0.040 0.035 April 1969 4 0.049 0.084 0.066 May 1969 5 0.064 0.174 0.103 June 1969 4 0.040 0.185 0.125 R:sidence North August 1968 4 0.047 0.135 0.079 Property Line September.1968 4 0.041 0.093 0.075 Point Beach october 1968 5 0.015 0.143 0.057 November 1968 4 0.022 0.029 0.027 December 1968 4 0.022 0.055 0.039 January 1969 5 0.013 0.042 0.031 February 1969 4 0.0 16 0.045 0.031 March 1969 4 0.031 0.059 0.045 April 1969 4 0.041 0.o76 0.060 May 1969 5 0.106 o.240 0.148 June 1969 4 0.o91 0.175 :o.130 Substation August 1968 4 0.035 0.085 'O.066 Wisconsin Public September 1968 4 0.043 o.083 0.068 Service Corp. - October 1968 5 0.037 0.080. .o.osi .

County Trunk V November 1968 4 0.013 0.029 0.02o December 1968 4 0.018 0.078 0.040 January 1969 4 0.024 0.o57- o.o38 February 1969 4 0.015 0.030 0.022 March 1969 4 0.033 0.049 0.039 April 1969 .4 o.043 0.066. .o.097 May 1969 5 0.096 0.233 o.120 June I M9 4 0.003 0.19S .O.163.

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TABLEI-A(Cont'd)

GROSS BETA ACTIVITY IN SURFACE AIR (Concentrations in pCi/M3) 4 Nurnber Iocation Month of Saarples Miniman Maximum Average P. Ihlenfeldt Farm November 1968 2 0.005 0.011 0.008 Kewaunee December 1968 4 0.011 0.044 0.029 January 1%9 4 0.016 0.o47 0.035-

! February 1969 3 -0.007 0.048 0.034 March 1969 5 o.049 0.o99 o.076-

,! April 1969 4 0.065- o.125 .o.099 i May 1969 4 0.108- o.220 0.150 4

June 1969 5 0.131 0.266 0.188 i

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AIR PARTICUIATES

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CESIIM 137 ACTIVITY -- GAMMA SCAN (Concentrations in'pci/ cubic meter of air)

Residence on North Substation Date Meteorologi' cal Tower' Property Line (Point Beach) County Trunk V P. Ihlenfeldt Farm.

Jttly 1968 .No Sample No Sample No Sample No Sample August 1968 0.055 0.061. o.co3 "' "~

September 1968 < o.002~ o.009 -

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october 1968 0.025 0.014 0.016 " -

November 1968 0.011 0.013 o.015 0.058' December 1968 ~ o.016 0.017 o.013 0.014 '

January 1969 0.018 0.013 0.017 .o.oo8 February 1969 0.018 0.017 o.oal o.021 March 1969 0.012 0.012 0.012- , o.013 April 1969 0.028 o.019 o.020 0.o29 May 1%9 0.031 o.043- o.038 0.050 June 1%9 0.031 0.026 0.027 0.029 AVERAGE o.022 0.022 o.017 o.028

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TABIE II ,

GROSS BETA ACTIVITY IN PRECIPITATION (Concentrations in nCi/M2 )

Substation (Wisconsin Meteorological Residence North Public Service Corp. P. Ihlenfeldt Farm 1 Month Tower Property Line ~ Co. Trunk V) Kewaunee November 1968 0.48 0.45 0.66 0.68 December 1968 3 52 6.50 14.41' -10.15' January 1969 No Sample No Sample No Sample 3 96 February 1969 No Sample No Sample No Sample 0.02 March 1969 No Sample No Sample No Sample 1.89 April 19f6 3 56 4.17 2 92 4.62 May 1969 2.10 2.19 2 94 3 35 June 1969 22 50 13 90 19 00 15 10 e

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TABLE III-A LAKE MICKIGAN WATER GROSS ALPHA AND GROSS BETA ACTIVITY (ConcentrationsinpCi/1)

Location and Gross Beta Activity Cross Alpha-Activity Collection Date Suspended Dissolved Total Suspe'nded Dissolved Tote.

Meteorological Tower July 1968 2.08 3 70 5 78. <1 <1 <2 August 1968 3 96 1.42 5 38 -<1 <1 <2 November 1968 1 58 2.12 3.70 <1 <1 <2 May 1969 2.18 2.06 4.24 <1 <1 <2 Two Creeks Park Aly 1968 1 56 3.10 4.66 <1 <1 '<2 August 1968 1.88 2.58 4.46 <1 <1 <2-Novecher 1968 1.58 1.64 3 22 <1 <1 <2-May 1969 <1 1 94 1 94 <1 <1 <2 Coast Guard Station aly 1968 5 76 3.62 9 38 <1 <1 <2 August 1968 1.64 1.7o 3 34 <1 <1 <2 November 1%8 <1 1.60 1.60 <1 <1 <2

'May 1969 1.86 4.7o 6.56 <1 <1 <2 County Line .

. July 1968 3.6o 2 98 6.58 <1 <1 <2 August 1968 1.68 2.02 3 70 <1 <1 <2 Green Bay Pumping Station November 1968 <1 1.84 1.84 <1 <1 <2 May 1969 1 90 3 38 5 28 <1 <1 <2 Kewaur.ee Site May 1969 3.42 3 10 6.52 <1 <1 <2

w TABLE III-B .

AVERAGE IAKE WATER RADIOACTIVITY . .

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(Concentrations in pCi/ iter)

Beta Activity Alpha Activity

_ ,Q11ection Date No. of Stations Suspended Dissolved T6tal Suspended Dissolved Total -Strontium 90 July 1%8 4 3 25 3 35 6.60 <1- < 1 <2 3 0h.

August 1%8 4 2.29 1 93 4.22 <1 < 1 <2 1 93-November 1%8- 4 'O.79 1.80 2 59 ~ <1 < 1. <2 May 1%9 5 1.87 3.03 4 90 <1 < 1 <2 < 1 O

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Cesium 137 -- pCi/ Liter Sampling Incation July 1968 Aug. 1968 oct. 1968 Nov. 1968 May 1%9 Composite Sample <32 1 - Meteorological Tower <32 <32 <32 5 - Two Creeks Park <32 <32 <32 <32 6 - coast Guard Station <32 SA <32 9 - County Line 9 <32 12 - Kewaimee Site <32 13 - Green Bay Pumping Station <32 < 3.2 O

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TABLE-IV WELL WATER RADIOACTIVITY (ConcentrationsinPC1/~ Liter)-

Date Location Collected Gross Beta Activity Gross Alpha' Activity on site (Point Beach)' 7/68 2;98 0.40 11/68 -1.08 0.00 5/69 1.06 0.04 International 7/68 1 90 0.22

. Harvester Garage .11/68 0.24 0 90 5/69 0 58 0.00

- Two Creeks Town- 7/68' O.26 0.04 Hall (Farm) 11/68 0.00 0.00 5/69 0.00 0.00 P. Ihlenfeldt Farm 11/68 1.12 0.00 5/69. o.38 0.00 Kewaunee Site (1) 11/68 1 34 0.00 5/69 4.62 0.04 (2) 5/69 1.46 0.22

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TABLE V SOIL RADIOACTIVITY (ConcentrationsinpCi/EmDryWeight)

Location Date Collected Gross Beta Activity Gross Alpha Activit Meteorological Tower _ 7/68 26.8 1.7 11/68 17.4 0.0 5/69 18.6 4.2 Southwest Corner of ~

7/68 33.0 <15 Property Line 11/68 22.0 < 1.5 5/69 25 1 < l.5 Two Creeks Town Hall 7/68 31.6 2.5 11/68 19.4 < l.5 5/69 23 3 < 1.5 Residence North 7/68 30.2 1.7 Property Line 11/68 21.2 1.8 5/69 26.7 2.1 Two Creeks Park 11/68 24.4 2.7 5/69 17 1 < l.5 Coast aucrd Station ~

7/68 21 3 < l.5 11/68 17 7 < l.5 5/69 10.6 2.0 Substation - Wisconsin 7/68 34.3 1.7 Public Service Corp. 11/68 23 0 1.8 Co. Trunk V 5/69 30.o < l.5 M Cabin on 163 7/68 38.6 27 P. Ihlenfeldt Fam 11/68 17.4 < l.5

~(Replaced LoS Cabin) 5/69 19 3 < l.5 County Line 7/68 25 5 < l.5 Green Bay Pumping Station 11/68 13 2 <15 (lo miles north of 5/69 13 0 2.6 Kewaunee) 1/2 Mile Due West from 5/69 25 7 30 Highway M at Kewaunee

! Site Junction BB and BBB Near 5/69 18.5 < l.5 Kewaunee Site i-.. .

TABLE VI * -

, VEGETATION SAMPLES (Concentrations in pCi/gm Dry Weight) 4 Location Collection Date Type Gross Beta Activity Gross Alpha Activity f Mit2orological Tower aly 1968- Grass 24.8. o.o November 1968 Grass 12 7 -< 1.5-May 1969

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Grass. 24.5 < 1 5' Southwest Corner -of July 1%8 Grass -

27.4 0.0 Property Line November 1%8 Grass 28.7 i

<15 May 1%9 Grass 32.0 < 1.5 Two Creeks Town Hall July 1%8 Grass 31.2 0.0 November 1968 Grass 15.8 < 1.5 May 1969 Grass 33 3 < 1.5 Residence North Property Line July 1968 Grass ~ 19.4 o.o November 1968 Grass 14.9- < 1.5 May 1969 Grass 34.9 < 1.5 Two Creeks Park November 1%8 Grass 24.3 < 1.5 May 1969 Grass 23 9 <15 Coast Guard Station July 1%8 Grass 27 3 0.0 November 1968 Grass 6.4 < 1.5 May 1969 Grass 27.7 <15 Substation - Wisconsin Public July 1968 Grass 32.1 0.0 Ssrvice Corp. November 1968 Grass 17 5 0.0 May 1969 Grass 24.7 < 1.5 g Cabin on 163 Aly 1968 Grass 39 5 0.0 P. Ihlenfeldt Farm November 1968 Grass 22.4 <15 May 1969 Grass 27 9 <15 County Line July 1968 Grass 27.8 0.0 Green Bay Pumping Station November 1968 Grnas 22.3 <15 May 1969 Grass 29 7 < 1.5 .

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' TABIE VI (cont'd) ....

VEGETATION SAMPIES I (Concentrations in pCi/gm Dry Weight)

Gross Beta Activity - Gross Alpha Activity Iocation ' Collection Date Type 1/2 Mile Due West From Highway 42 at Kewaunee Site

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May 1969 Grass 32 9 ..< l.5 Junction BB and BBB Near Kewaunee

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Sita May 1%9 Grass 32.7 < l.5 i

Laks Michigan August 1968 Algae 24.4 < l.5 -;

i Two Creeks Park November 1968 Algae 31.7 < l.5 l

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  • - TABE VII MILK SAMPLES (Concentrations in pCi/ Liter)

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< Location and Date Iodine 131 cesium 137 strontium 90 Mishicot July 1968- <32 .<32 7

' August 1%8 <32 5.1 4 September 1%8 <32 ' <32 3 october 1968 5.6 <32 2 November 1968 73 6.3 4 December 1%8 6.2 36 7 January 1969 <32 <32 3

-February 1969 <32 4.3 3 March 1969 72 <32 4

. April 1969 4.9 89 6 May 1959 4.8 33 5 June 1969 79 <32 5 W

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o SCHEDULE OF SAMPLING 3

! SAMPLING IDCATIONS POR POINT BEACH AND KEWAUNEE NUCLEAR POWER PTAlfrfl ~.

WEEKLY WHEN AVAILABLE Air Filters: Precipitation:

1-MeteorologicalTower(PointBeach) 1 - Meteorological Tower (Point Beach)

I 4 - Residence North Property Line (PointBeach) '4 - Residence North Property Line:(Point Beach) -

7 - Substation (Wisconsin Public Service Corp. - Co. Trunk V) 7 - Substation (Wis. Public Service Corp. . Co. Trnk V -

i 8 - P. Ihlenfeldt Fam, Kewaunee 8 - P. Ihlenfeldt' Fam, Kewaunee i

! MOlfrHLY I Milk:

9 - Mishicot i SEMIANNUALLY Type of Sample Collected Sample No. and Incation Lake Water Well Water Soil- Vegetation-I l 1 - Meteorological Tower X X X 2 - SW Corner of Property Line X X

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4 3 - Two Creeks Town Hall (Well Water at Fam) X X X

! 4 - Residence North Property Line X 'X i 5 - Two creeks Park X X X t

6 - coast cuard Station X X X

, 7 - Substation - Wisconsin Public Service Corp. X X 8 - P. Ihlenfeldt Farm (Kewaunee) X X X

10 - On Bite (Point Beach) X

! 11 - Two Creeks International Harvester X j 12 - Kewaunee Site X X (2) 13 - Green Bay Pumping Station

(10 miles north of Kewaunee Site) X X- X-14 - 1/2 Mile Due West from Highway 42 at Kewaunee Site X X 15 - Junction BB and BBB Near Kewaunee Site X. X k '

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Sample Volume: 3 5 liters Channels Used: .E 56 Energy Distribution: 0.Ol, MeV/ Channel s p _ __.. . . ... _...

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